Cor-Ten steel is versatile and can be adapted to any building type and geometry. It can be utilised as an element in an exterior rain screen facade, within an interior panel system with a high performance clear top coat (or raw), as signage, or in artistic pieces. Weathering steel should not be used in: • Sheltered locations with damp conditions, constant humidity or persistent fog. • Permanent contact with water. • Cor-Ten steel should not be used within 2 (two) kilometres of coastal waters unless airborne chloride levels do not exceed the S2 salinity classification that is Cl<300 mg/m2/day, according to EN ISO9223 – Corrosion of Metals and Alloys. • Soil or covered with vegetation. • Direct contact to de-icing salts used on roads. • Weathering steel should not be used without protection in an environment above P3 that is SO2 > 200 mg/m2/day which represents an aggressive atmosphere with high levels of atmospheric corrosion, in accordance with EN ISO9223 – Corrosion of Metals and Alloys.